chrome/browser/ui/toolbar/recent_tabs_sub_menu_model_unittest.cc

   1 // Copyright (c) 2012 The Chromium Authors. All rights reserved.
   2 // Use of this source code is governed by a BSD-style license that can be
   3 // found in the LICENSE file.
   4
   5 #include "chrome/browser/ui/toolbar/recent_tabs_sub_menu_model.h"
   6
   7 #include "base/command_line.h"
   8 #include "base/run_loop.h"
   9 #include "chrome/app/chrome_command_ids.h"
  10 #include "chrome/browser/sessions/session_service.h"
  11 #include "chrome/browser/sessions/session_service_factory.h"
  12 #include "chrome/browser/sessions/session_types.h"
  13 #include "chrome/browser/sessions/persistent_tab_restore_service.h"
  14 #include "chrome/browser/sessions/tab_restore_service_factory.h"
  15 #include "chrome/browser/sync/glue/session_model_associator.h"
  16 #include "chrome/browser/sync/glue/synced_session.h"
  17 #include "chrome/browser/sync/profile_sync_service_mock.h"
  18 #include "chrome/browser/sync/sessions2/sessions_sync_manager.h"
  19 #include "chrome/browser/ui/browser.h"
  20 #include "chrome/browser/ui/browser_tabstrip.h"
  21 #include "chrome/browser/ui/tabs/tab_strip_model.h"
  22 #include "chrome/browser/ui/toolbar/recent_tabs_builder_test_helper.h"
  23 #include "chrome/common/chrome_switches.h"
  24 #include "chrome/test/base/browser_with_test_window_test.h"
  25 #include "chrome/test/base/menu_model_test.h"
  26 #include "chrome/test/base/testing_profile.h"
  27 #include "components/sessions/serialized_navigation_entry_test_helper.h"
  28 #include "grit/generated_resources.h"
  29 #include "sync/api/fake_sync_change_processor.h"
  30 #include "sync/api/sync_error_factory_mock.h"
  31 #include "testing/gmock/include/gmock/gmock.h"
  32 #include "testing/gtest/include/gtest/gtest.h"
  33
  34 namespace {
  35
  36 // This copies parts of MenuModelTest::Delegate and combines them with the
  37 // RecentTabsSubMenuModel since RecentTabsSubMenuModel is a
  38 // SimpleMenuModel::Delegate and not just derived from SimpleMenuModel.
  39 class TestRecentTabsSubMenuModel : public RecentTabsSubMenuModel {
  40  public:
  41   TestRecentTabsSubMenuModel(ui::AcceleratorProvider* provider,
  42                              Browser* browser,
  43                              browser_sync::OpenTabsUIDelegate* delegate)
  44       : RecentTabsSubMenuModel(provider, browser, delegate),
  45         execute_count_(0),
  46         enable_count_(0) {
  47   }
  48
  49   // Testing overrides to ui::SimpleMenuModel::Delegate:
  50   virtual bool IsCommandIdEnabled(int command_id) const OVERRIDE {
  51     bool val = RecentTabsSubMenuModel::IsCommandIdEnabled(command_id);
  52     if (val)
  53       ++enable_count_;
  54     return val;
  55   }
  56
  57   virtual void ExecuteCommand(int command_id, int event_flags) OVERRIDE {
  58     ++execute_count_;
  59   }
  60
  61   int execute_count() const { return execute_count_; }
  62   int enable_count() const { return enable_count_; }
  63
  64  private:
  65   int execute_count_;
  66   int mutable enable_count_;  // Mutable because IsCommandIdEnabledAt is const.
  67
  68   DISALLOW_COPY_AND_ASSIGN(TestRecentTabsSubMenuModel);
  69 };
  70
  71 class TestRecentTabsMenuModelDelegate : public ui::MenuModelDelegate {
  72  public:
  73   explicit TestRecentTabsMenuModelDelegate(ui::MenuModel* model)
  74       : model_(model),
  75         got_changes_(false) {
  76     model_->SetMenuModelDelegate(this);
  77   }
  78
  79   virtual ~TestRecentTabsMenuModelDelegate() {
  80     model_->SetMenuModelDelegate(NULL);
  81   }
  82
  83   // ui::MenuModelDelegate implementation:
  84
  85   virtual void OnIconChanged(int index) OVERRIDE {
  86   }
  87
  88   virtual void OnMenuStructureChanged() OVERRIDE {
  89     got_changes_ = true;
  90   }
  91
  92   bool got_changes() const { return got_changes_; }
  93
  94  private:
  95   ui::MenuModel* model_;
  96   bool got_changes_;
  97
  98   DISALLOW_COPY_AND_ASSIGN(TestRecentTabsMenuModelDelegate);
  99 };
 100
 101 class DummyRouter : public browser_sync::LocalSessionEventRouter {
 102  public:
 103   virtual ~DummyRouter() {}
 104   virtual void StartRoutingTo(
 105       browser_sync::LocalSessionEventHandler* handler) OVERRIDE {}
 106   virtual void Stop() OVERRIDE {}
 107 };
 108
 109 }  // namespace
 110
 111 class RecentTabsSubMenuModelTest
 112     : public BrowserWithTestWindowTest,
 113       public browser_sync::SessionsSyncManager::SyncInternalApiDelegate {
 114  public:
 115    RecentTabsSubMenuModelTest()
 116        : sync_service_(&testing_profile_) {
 117     if (CommandLine::ForCurrentProcess()->HasSwitch(
 118             switches::kEnableSyncSessionsV2)) {
 119       manager_.reset(new browser_sync::SessionsSyncManager(
 120           &testing_profile_,
 121           this,
 122           scoped_ptr<browser_sync::LocalSessionEventRouter>(
 123               new DummyRouter())));
 124       manager_->MergeDataAndStartSyncing(
 125           syncer::SESSIONS,
 126           syncer::SyncDataList(),
 127           scoped_ptr<syncer::SyncChangeProcessor>(
 128             new syncer::FakeSyncChangeProcessor),
 129           scoped_ptr<syncer::SyncErrorFactory>(
 130               new syncer::SyncErrorFactoryMock));
 131     } else {
 132       associator_.reset(new browser_sync::SessionModelAssociator(
 133           &sync_service_, true));
 134       associator_->SetCurrentMachineTagForTesting(
 135           GetLocalSyncCacheGUID());
 136     }
 137   }
 138
 139   void WaitForLoadFromLastSession() {
 140     content::BrowserThread::GetBlockingPool()->FlushForTesting();
 141     base::RunLoop().RunUntilIdle();
 142     content::BrowserThread::GetBlockingPool()->FlushForTesting();
 143   }
 144
 145   static BrowserContextKeyedService* GetTabRestoreService(
 146       content::BrowserContext* browser_context) {
 147     // Ownership is tranfered to the profile.
 148     return new PersistentTabRestoreService(
 149         Profile::FromBrowserContext(browser_context), NULL);;
 150   }
 151
 152
 153   browser_sync::OpenTabsUIDelegate* GetOpenTabsDelegate() {
 154     if (CommandLine::ForCurrentProcess()->HasSwitch(
 155             switches::kEnableSyncSessionsV2)) {
 156       return manager_.get();
 157     } else {
 158       return associator_.get();
 159     }
 160   }
 161
 162   void RegisterRecentTabs(RecentTabsBuilderTestHelper* helper) {
 163     if (CommandLine::ForCurrentProcess()->HasSwitch(
 164             switches::kEnableSyncSessionsV2)) {
 165       helper->ExportToSessionsSyncManager(manager_.get());
 166     } else {
 167       helper->ExportToSessionModelAssociator(associator_.get());
 168     }
 169   }
 170
 171   virtual scoped_ptr<browser_sync::DeviceInfo> GetLocalDeviceInfo()
 172       const OVERRIDE {
 173     return scoped_ptr<browser_sync::DeviceInfo>(
 174         new browser_sync::DeviceInfo(GetLocalSyncCacheGUID(),
 175                        "Test Machine",
 176                        "Chromium 10k",
 177                        "Chrome 10k",
 178                        sync_pb::SyncEnums_DeviceType_TYPE_LINUX));
 179   }
 180
 181   virtual std::string GetLocalSyncCacheGUID() const OVERRIDE {
 182     return "RecentTabsSubMenuModelTest";
 183   }
 184
 185  private:
 186   TestingProfile testing_profile_;
 187   testing::NiceMock<ProfileSyncServiceMock> sync_service_;
 188
 189   // TODO(tim): Remove associator_ when sessions V2 is the default, bug 98892.
 190   scoped_ptr<browser_sync::SessionModelAssociator> associator_;
 191   scoped_ptr<browser_sync::SessionsSyncManager> manager_;
 192 };
 193
 194 // Test disabled "Recently closed" header with no foreign tabs.
 195 TEST_F(RecentTabsSubMenuModelTest, NoTabs) {
 196   TestRecentTabsSubMenuModel model(NULL, browser(), NULL);
 197
 198   // Expected menu:
 199   // Menu index  Menu items
 200   // ---------------------------------------------
 201   // 0           Recently closed header (disabled)
 202   // 1           <separator>
 203   // 2           No tabs from other Devices
 204
 205   int num_items = model.GetItemCount();
 206   EXPECT_EQ(3, num_items);
 207   EXPECT_FALSE(model.IsEnabledAt(0));
 208   EXPECT_FALSE(model.IsEnabledAt(2));
 209   EXPECT_EQ(0, model.enable_count());
 210
 211   EXPECT_EQ(NULL, model.GetLabelFontListAt(0));
 212   EXPECT_EQ(NULL, model.GetLabelFontListAt(1));
 213   EXPECT_EQ(NULL, model.GetLabelFontListAt(2));
 214
 215   std::string url;
 216   base::string16 title;
 217   EXPECT_FALSE(model.GetURLAndTitleForItemAtIndex(0, &url, &title));
 218   EXPECT_FALSE(model.GetURLAndTitleForItemAtIndex(1, &url, &title));
 219   EXPECT_FALSE(model.GetURLAndTitleForItemAtIndex(2, &url, &title));
 220 }
 221
 222 // Test enabled "Recently closed" header with no foreign tabs.
 223 TEST_F(RecentTabsSubMenuModelTest, RecentlyClosedTabsFromCurrentSession) {
 224   TabRestoreServiceFactory::GetInstance()->SetTestingFactory(
 225       profile(), RecentTabsSubMenuModelTest::GetTabRestoreService);
 226
 227   // Add 2 tabs and close them.
 228   AddTab(browser(), GURL("http://foo/1"));
 229   AddTab(browser(), GURL("http://foo/2"));
 230   browser()->tab_strip_model()->CloseAllTabs();
 231
 232   TestRecentTabsSubMenuModel model(NULL, browser(), NULL);
 233   // Expected menu:
 234   // Menu index  Menu items
 235   // --------------------------------------
 236   // 0           Recently closed header
 237   // 1           <tab for http://foo/2>
 238   // 2           <tab for http://foo/1>
 239   // 3           <separator>
 240   // 4           No tabs from other Devices
 241   int num_items = model.GetItemCount();
 242   EXPECT_EQ(5, num_items);
 243   EXPECT_FALSE(model.IsEnabledAt(0));
 244   EXPECT_TRUE(model.IsEnabledAt(1));
 245   EXPECT_TRUE(model.IsEnabledAt(2));
 246   model.ActivatedAt(1);
 247   model.ActivatedAt(2);
 248   EXPECT_FALSE(model.IsEnabledAt(4));
 249   EXPECT_EQ(2, model.enable_count());
 250   EXPECT_EQ(2, model.execute_count());
 251
 252   EXPECT_TRUE(model.GetLabelFontListAt(0) != NULL);
 253   EXPECT_EQ(NULL, model.GetLabelFontListAt(1));
 254   EXPECT_EQ(NULL, model.GetLabelFontListAt(2));
 255   EXPECT_EQ(NULL, model.GetLabelFontListAt(3));
 256   EXPECT_EQ(NULL, model.GetLabelFontListAt(4));
 257
 258   std::string url;
 259   base::string16 title;
 260   EXPECT_FALSE(model.GetURLAndTitleForItemAtIndex(0, &url, &title));
 261   EXPECT_TRUE(model.GetURLAndTitleForItemAtIndex(1, &url, &title));
 262   EXPECT_TRUE(model.GetURLAndTitleForItemAtIndex(2, &url, &title));
 263   EXPECT_FALSE(model.GetURLAndTitleForItemAtIndex(3, &url, &title));
 264   EXPECT_FALSE(model.GetURLAndTitleForItemAtIndex(4, &url, &title));
 265 }
 266
 267 // TODO(sail): enable this test when dynamic model is enabled in
 268 // RecentTabsSubMenuModel.
 269 #if defined(OS_MACOSX)
 270 #define MAYBE_RecentlyClosedTabsAndWindowsFromLastSession \
 271     DISABLED_RecentlyClosedTabsAndWindowsFromLastSession
 272 #else
 273 #define MAYBE_RecentlyClosedTabsAndWindowsFromLastSession \
 274     RecentlyClosedTabsAndWindowsFromLastSession
 275 #endif
 276 TEST_F(RecentTabsSubMenuModelTest,
 277        MAYBE_RecentlyClosedTabsAndWindowsFromLastSession) {
 278   TabRestoreServiceFactory::GetInstance()->SetTestingFactory(
 279       profile(), RecentTabsSubMenuModelTest::GetTabRestoreService);
 280
 281   // Add 2 tabs and close them.
 282   AddTab(browser(), GURL("http://wnd/tab0"));
 283   AddTab(browser(), GURL("http://wnd/tab1"));
 284   browser()->tab_strip_model()->CloseAllTabs();
 285
 286   // Create a SessionService for the profile (profile owns the service) and add
 287   // a window with a tab to this session.
 288   SessionService* session_service = new SessionService(profile());
 289   SessionServiceFactory::SetForTestProfile(profile(), session_service);
 290   SessionID tab_id;
 291   SessionID window_id;
 292   session_service->SetWindowType(
 293       window_id, Browser::TYPE_TABBED, SessionService::TYPE_NORMAL);
 294   session_service->SetTabWindow(window_id, tab_id);
 295   session_service->SetTabIndexInWindow(window_id, tab_id, 0);
 296   session_service->SetSelectedTabInWindow(window_id, 0);
 297   session_service->UpdateTabNavigation(
 298       window_id, tab_id,
 299       sessions::SerializedNavigationEntryTestHelper::CreateNavigation(
 300           "http://wnd1/tab0", "title"));
 301   // Set this, otherwise previous session won't be loaded.
 302   profile()->set_last_session_exited_cleanly(false);
 303   // Move this session to the last so that TabRestoreService will load it as the
 304   // last session.
 305   SessionServiceFactory::GetForProfile(profile())->
 306       MoveCurrentSessionToLastSession();
 307
 308   // Create a new TabRestoreService so that it'll load the recently closed tabs
 309   // and windows afresh.
 310   TabRestoreServiceFactory::GetInstance()->SetTestingFactory(
 311       profile(), RecentTabsSubMenuModelTest::GetTabRestoreService);
 312   // Let the shutdown of previous TabRestoreService run.
 313   content::BrowserThread::GetBlockingPool()->FlushForTesting();
 314
 315   TestRecentTabsSubMenuModel model(NULL, browser(), NULL);
 316   TestRecentTabsMenuModelDelegate delegate(&model);
 317   EXPECT_FALSE(delegate.got_changes());
 318
 319   // Expected menu before tabs/windows from last session are loaded:
 320   // Menu index  Menu items
 321   // ----------------------------------------------------------------
 322   // 0           Recently closed header
 323   // 1           <separator>
 324   // 2           No tabs from other Devices
 325
 326   int num_items = model.GetItemCount();
 327   EXPECT_EQ(3, num_items);
 328   EXPECT_FALSE(model.IsEnabledAt(0));
 329   EXPECT_EQ(ui::MenuModel::TYPE_SEPARATOR, model.GetTypeAt(1));
 330   EXPECT_FALSE(model.IsEnabledAt(2));
 331   EXPECT_EQ(0, model.enable_count());
 332
 333   // Wait for tabs from last session to be loaded.
 334   WaitForLoadFromLastSession();
 335
 336   // Expected menu after tabs/windows from last session are loaded:
 337   // Menu index  Menu items
 338   // --------------------------------------------------------------
 339   // 0           Recently closed header
 340   // 1           <window for the tab http://wnd1/tab0>
 341   // 2           <tab for http://wnd0/tab1>
 342   // 3           <tab for http://wnd0/tab0>
 343   // 4           <separator>
 344   // 5           No tabs from other Devices
 345
 346   EXPECT_TRUE(delegate.got_changes());
 347
 348   num_items = model.GetItemCount();
 349   EXPECT_EQ(6, num_items);
 350   EXPECT_FALSE(model.IsEnabledAt(0));
 351   EXPECT_TRUE(model.IsEnabledAt(1));
 352   EXPECT_TRUE(model.IsEnabledAt(2));
 353   EXPECT_TRUE(model.IsEnabledAt(3));
 354   model.ActivatedAt(1);
 355   model.ActivatedAt(2);
 356   model.ActivatedAt(3);
 357   EXPECT_EQ(ui::MenuModel::TYPE_SEPARATOR, model.GetTypeAt(4));
 358   EXPECT_FALSE(model.IsEnabledAt(5));
 359   EXPECT_EQ(3, model.enable_count());
 360   EXPECT_EQ(3, model.execute_count());
 361
 362   EXPECT_TRUE(model.GetLabelFontListAt(0) != NULL);
 363   EXPECT_EQ(NULL, model.GetLabelFontListAt(1));
 364   EXPECT_EQ(NULL, model.GetLabelFontListAt(2));
 365   EXPECT_EQ(NULL, model.GetLabelFontListAt(3));
 366   EXPECT_EQ(NULL, model.GetLabelFontListAt(4));
 367   EXPECT_EQ(NULL, model.GetLabelFontListAt(5));
 368
 369   std::string url;
 370   base::string16 title;
 371   EXPECT_FALSE(model.GetURLAndTitleForItemAtIndex(0, &url, &title));
 372   EXPECT_FALSE(model.GetURLAndTitleForItemAtIndex(1, &url, &title));
 373   EXPECT_TRUE(model.GetURLAndTitleForItemAtIndex(2, &url, &title));
 374   EXPECT_TRUE(model.GetURLAndTitleForItemAtIndex(3, &url, &title));
 375   EXPECT_FALSE(model.GetURLAndTitleForItemAtIndex(4, &url, &title));
 376   EXPECT_FALSE(model.GetURLAndTitleForItemAtIndex(5, &url, &title));
 377 }
 378
 379 // Test disabled "Recently closed" header with multiple sessions, multiple
 380 // windows, and multiple enabled tabs from other devices.
 381 TEST_F(RecentTabsSubMenuModelTest, OtherDevices) {
 382   // Tabs are populated in decreasing timestamp.
 383   base::Time timestamp = base::Time::Now();
 384   const base::TimeDelta time_delta = base::TimeDelta::FromMinutes(10);
 385
 386   RecentTabsBuilderTestHelper recent_tabs_builder;
 387
 388   // Create 1st session : 1 window, 3 tabs
 389   recent_tabs_builder.AddSession();
 390   recent_tabs_builder.AddWindow(0);
 391   for (int i = 0; i < 3; ++i) {
 392     timestamp -= time_delta;
 393     recent_tabs_builder.AddTabWithInfo(0, 0, timestamp, base::string16());
 394   }
 395
 396   // Create 2nd session : 2 windows, 1 tab in 1st window, 2 tabs in 2nd window
 397   recent_tabs_builder.AddSession();
 398   recent_tabs_builder.AddWindow(1);
 399   recent_tabs_builder.AddWindow(1);
 400   timestamp -= time_delta;
 401   recent_tabs_builder.AddTabWithInfo(1, 0, timestamp, base::string16());
 402   timestamp -= time_delta;
 403   recent_tabs_builder.AddTabWithInfo(1, 1, timestamp, base::string16());
 404   timestamp -= time_delta;
 405   recent_tabs_builder.AddTabWithInfo(1, 1, timestamp, base::string16());
 406
 407   RegisterRecentTabs(&recent_tabs_builder);
 408
 409   // Verify that data is populated correctly in RecentTabsSubMenuModel.
 410   // Expected menu:
 411   // - first inserted tab is most recent and hence is top
 412   // Menu index  Menu items
 413   // -----------------------------------------------------
 414   // 0           Recently closed header (disabled)
 415   // 1           <separator>
 416   // 2           <section header for 1st session>
 417   // 3-5         <3 tabs of the only window of session 0>
 418   // 6           <separator>
 419   // 7           <section header for 2nd session>
 420   // 8           <the only tab of window 0 of session 1>
 421   // 9-10        <2 tabs of window 1 of session 2>
 422   // 11          <separator>
 423   // 12          More...
 424
 425   TestRecentTabsSubMenuModel model(NULL, browser(), GetOpenTabsDelegate());
 426   int num_items = model.GetItemCount();
 427   EXPECT_EQ(13, num_items);
 428   model.ActivatedAt(0);
 429   EXPECT_FALSE(model.IsEnabledAt(0));
 430   model.ActivatedAt(3);
 431   EXPECT_TRUE(model.IsEnabledAt(3));
 432   model.ActivatedAt(4);
 433   EXPECT_TRUE(model.IsEnabledAt(4));
 434   model.ActivatedAt(5);
 435   EXPECT_TRUE(model.IsEnabledAt(5));
 436   model.ActivatedAt(8);
 437   EXPECT_TRUE(model.IsEnabledAt(8));
 438   model.ActivatedAt(9);
 439   EXPECT_TRUE(model.IsEnabledAt(9));
 440   model.ActivatedAt(10);
 441   EXPECT_TRUE(model.IsEnabledAt(10));
 442   EXPECT_TRUE(model.IsEnabledAt(12));
 443   EXPECT_EQ(7, model.enable_count());
 444   EXPECT_EQ(7, model.execute_count());
 445
 446   EXPECT_EQ(NULL, model.GetLabelFontListAt(0));
 447   EXPECT_EQ(NULL, model.GetLabelFontListAt(1));
 448   EXPECT_TRUE(model.GetLabelFontListAt(2) != NULL);
 449   EXPECT_EQ(NULL, model.GetLabelFontListAt(3));
 450   EXPECT_EQ(NULL, model.GetLabelFontListAt(4));
 451   EXPECT_EQ(NULL, model.GetLabelFontListAt(5));
 452   EXPECT_EQ(NULL, model.GetLabelFontListAt(6));
 453   EXPECT_TRUE(model.GetLabelFontListAt(7) != NULL);
 454   EXPECT_EQ(NULL, model.GetLabelFontListAt(8));
 455   EXPECT_EQ(NULL, model.GetLabelFontListAt(9));
 456   EXPECT_EQ(NULL, model.GetLabelFontListAt(10));
 457   EXPECT_EQ(NULL, model.GetLabelFontListAt(11));
 458   EXPECT_EQ(NULL, model.GetLabelFontListAt(12));
 459
 460   std::string url;
 461   base::string16 title;
 462   EXPECT_FALSE(model.GetURLAndTitleForItemAtIndex(0, &url, &title));
 463   EXPECT_FALSE(model.GetURLAndTitleForItemAtIndex(1, &url, &title));
 464   EXPECT_FALSE(model.GetURLAndTitleForItemAtIndex(2, &url, &title));
 465   EXPECT_TRUE(model.GetURLAndTitleForItemAtIndex(3, &url, &title));
 466   EXPECT_TRUE(model.GetURLAndTitleForItemAtIndex(4, &url, &title));
 467   EXPECT_TRUE(model.GetURLAndTitleForItemAtIndex(5, &url, &title));
 468   EXPECT_FALSE(model.GetURLAndTitleForItemAtIndex(6, &url, &title));
 469   EXPECT_FALSE(model.GetURLAndTitleForItemAtIndex(7, &url, &title));
 470   EXPECT_TRUE(model.GetURLAndTitleForItemAtIndex(8, &url, &title));
 471   EXPECT_TRUE(model.GetURLAndTitleForItemAtIndex(9, &url, &title));
 472   EXPECT_TRUE(model.GetURLAndTitleForItemAtIndex(10, &url, &title));
 473   EXPECT_FALSE(model.GetURLAndTitleForItemAtIndex(11, &url, &title));
 474   EXPECT_FALSE(model.GetURLAndTitleForItemAtIndex(12, &url, &title));
 475 }
 476
 477 TEST_F(RecentTabsSubMenuModelTest, MaxSessionsAndRecency) {
 478   // Create 4 sessions : each session has 1 window with 1 tab each.
 479   RecentTabsBuilderTestHelper recent_tabs_builder;
 480   for (int s = 0; s < 4; ++s) {
 481     recent_tabs_builder.AddSession();
 482     recent_tabs_builder.AddWindow(s);
 483     recent_tabs_builder.AddTab(s, 0);
 484   }
 485   RegisterRecentTabs(&recent_tabs_builder);
 486
 487   // Verify that data is populated correctly in RecentTabsSubMenuModel.
 488   // Expected menu:
 489   // - max sessions is 3, so only 3 most-recent sessions will show.
 490   // Menu index  Menu items
 491   // ----------------------------------------------------------
 492   // 0           Recently closed header (disabled)
 493   // 1           <separator>
 494   // 2           <section header for 1st session>
 495   // 3           <the only tab of the only window of session 3>
 496   // 4           <separator>
 497   // 5           <section header for 2nd session>
 498   // 6           <the only tab of the only window of session 2>
 499   // 7           <separator>
 500   // 8           <section header for 3rd session>
 501   // 9           <the only tab of the only window of session 1>
 502   // 10          <separator>
 503   // 11          More...
 504
 505   TestRecentTabsSubMenuModel model(NULL, browser(), GetOpenTabsDelegate());
 506   int num_items = model.GetItemCount();
 507   EXPECT_EQ(12, num_items);
 508
 509   std::vector<base::string16> tab_titles =
 510       recent_tabs_builder.GetTabTitlesSortedByRecency();
 511   EXPECT_EQ(tab_titles[0], model.GetLabelAt(3));
 512   EXPECT_EQ(tab_titles[1], model.GetLabelAt(6));
 513   EXPECT_EQ(tab_titles[2], model.GetLabelAt(9));
 514 }
 515
 516 TEST_F(RecentTabsSubMenuModelTest, MaxTabsPerSessionAndRecency) {
 517   // Create a session: 2 windows with 5 tabs each.
 518   RecentTabsBuilderTestHelper recent_tabs_builder;
 519   recent_tabs_builder.AddSession();
 520   for (int w = 0; w < 2; ++w) {
 521     recent_tabs_builder.AddWindow(0);
 522     for (int t = 0; t < 5; ++t)
 523       recent_tabs_builder.AddTab(0, w);
 524   }
 525   RegisterRecentTabs(&recent_tabs_builder);
 526
 527   // Verify that data is populated correctly in RecentTabsSubMenuModel.
 528   // Expected menu:
 529   // - max tabs per session is 4, so only 4 most-recent tabs will show,
 530   //   independent of which window they came from.
 531   // Menu index  Menu items
 532   // ---------------------------------------------
 533   // 0           Recently closed header (disabled)
 534   // 1           <separator>
 535   // 2           <section header for session>
 536   // 3-6         <4 most-recent tabs of session>
 537   // 7           <separator>
 538   // 8           More...
 539
 540   TestRecentTabsSubMenuModel model(NULL, browser(), GetOpenTabsDelegate());
 541   int num_items = model.GetItemCount();
 542   EXPECT_EQ(9, num_items);
 543
 544   std::vector<base::string16> tab_titles =
 545       recent_tabs_builder.GetTabTitlesSortedByRecency();
 546   for (int i = 0; i < 4; ++i)
 547     EXPECT_EQ(tab_titles[i], model.GetLabelAt(i + 3));
 548 }
 549
 550 TEST_F(RecentTabsSubMenuModelTest, MaxWidth) {
 551   // Create 1 session with 1 window and 1 tab.
 552   RecentTabsBuilderTestHelper recent_tabs_builder;
 553   recent_tabs_builder.AddSession();
 554   recent_tabs_builder.AddWindow(0);
 555   recent_tabs_builder.AddTab(0, 0);
 556   RegisterRecentTabs(&recent_tabs_builder);
 557
 558   // Menu index  Menu items
 559   // ----------------------------------------------------------
 560   // 0           Recently closed header (disabled)
 561   // 1           <separator>
 562   // 2           <section header for 1st session>
 563   // 3           <the only tab of the only window of session 1>
 564   // 4           <separator>
 565   // 5           More...
 566
 567   TestRecentTabsSubMenuModel model(NULL, browser(), GetOpenTabsDelegate());
 568   EXPECT_EQ(6, model.GetItemCount());
 569   EXPECT_EQ(-1, model.GetMaxWidthForItemAtIndex(0));
 570   EXPECT_NE(-1, model.GetMaxWidthForItemAtIndex(1));
 571   EXPECT_NE(-1, model.GetMaxWidthForItemAtIndex(2));
 572   EXPECT_NE(-1, model.GetMaxWidthForItemAtIndex(3));
 573 }
 574
 575 TEST_F(RecentTabsSubMenuModelTest, MaxWidthNoDevices) {
 576   // Expected menu:
 577   // Menu index  Menu items
 578   // --------------------------------------------
 579   // 0           Recently closed heaer (disabled)
 580   // 1           <separator>
 581   // 2           No tabs from other Devices
 582
 583   TestRecentTabsSubMenuModel model(NULL, browser(), NULL);
 584   EXPECT_EQ(3, model.GetItemCount());
 585   EXPECT_EQ(-1, model.GetMaxWidthForItemAtIndex(0));
 586   EXPECT_NE(-1, model.GetMaxWidthForItemAtIndex(1));
 587   EXPECT_EQ(-1, model.GetMaxWidthForItemAtIndex(2));
 588 }